Reference for Bava Metzia 2:2
וְאֵלוּ חַיָּב לְהַכְרִיז, מָצָא פֵרוֹת בִּכְלִי אוֹ כְלִי כְּמוֹת שֶׁהוּא, מָעוֹת בְּכִיס אוֹ כִיס כְּמוֹת שֶׁהוּא, צִבּוּרֵי פֵרוֹת, צִבּוּרֵי מָעוֹת, שְׁלשָׁה מַטְבְּעוֹת זֶה עַל גַּב זֶה, כְּרִיכוֹת בִּרְשׁוּת הַיָּחִיד, וְכִכָּרוֹת שֶׁל בַּעַל הַבַּיִת, וְגִזֵּי צֶמֶר הַלְּקוּחוֹת מִבֵּית הָאֻמָּן, כַּדֵּי יַיִן וְכַדֵּי שֶׁמֶן, הֲרֵי אֵלּוּ חַיָּב לְהַכְרִיז:
And these must be called out: If he found fruits in a vessel, [which has a siman], or a vessel as it is [i.e., empty], money in a pouch, or a pouch as it is, piled fruits [The number or the place is a siman], piled money, three coins [or more], one atop the other, [The finder calls out: "I have found coins," and the loser comes and says: "There were such and such a number and they were lying one atop the other."], small sheaves in a private domain, home-made loaves, wool shearings taken from the tradesman's house, pitchers of wine, and pitchers of oil — these must be called out.